Efficient All-Fiber Amplifier based on Small Diameter Air Clad Fibers

Case ID:

This technology is a novel fiber amplifier that achieves high efficiency while reducing cladding thickness.

Optical fiber communications are in high demand and expected to continue to grow at a fast pace in the near future. As companies compete to take advantage of this market opportunity, there is a drive to continuously improve the efficiency of optical communications. One area with room for innovation is optical amplifiers.

Signals traveling over fiber optic cables attenuate over distance, requiring amplification to travel longer distances. Optical amplifiers like this technology boost a fiber optic signal without needing to first convert it back into an electrical signal. This technology improves on other similar amplifiers by allowing for smaller diameter cladding to conserve space, without sacrificing efficiency of amplification.


  • Fiber optic telecommunications
  • Aerospace
  • Military


  • Efficient
  • Compact

Status: issued U.S. patent #11,417,998

Patent Information:
Contact For More Information:
Richard Weite
Senior Licensing Manager, College of Optical Sciences
The University of Arizona
Lead Inventor(s):
Valery Temyanko
Leonid Kotov
Nasser Peyghambarian